Subsequent Events (Details 1) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Schedule of minimum lease payments required under the office lease agreement
2013	$ 575
2014	575
2015	589
2016	604
2017	618
Thereafter	2,995
Total	5,956
Subsequent Event [Member]
Schedule of minimum lease payments required under the office lease agreement
2013	643
2014	734
2015	752
2016	771
2017	789
Thereafter	3,813
Total	$ 7,502